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The 2009 swine flu pandemic, caused by the H1N1/swine flu/influenza virus and declared by the World Health Organization (WHO) from June 2009 to August 2010, was the third recent flu pandemic involving the H1N1 virus (the first being the 1918–1920 Spanish flu pandemic and the second being the 1977 Russian flu).
CHICAGO (Reuters) -H5N1 bird flu was confirmed in a pig on a backyard farm in Oregon, the first detection of the virus in swine in the country, the U.S. Department of Agriculture said on Wednesday.
2009 swine flu pandemic: 2009–2010 Worldwide Influenza A virus subtype H1N1: Lab confirmed deaths: 18,449 (reported to the WHO) [264] Estimated death toll: 284,000 (possible range 151,700–575,400) [265] 2010s Haiti cholera outbreak: 2010–2019 Haiti: Cholera (strain serogroup O1, serotype Ogawa) 10,075 [266]
The main virus involved in the global outbreak is as H5N1 clade 2.3.4.4b, genetic diversification of which with other clades (such as 2.3.2.1c) has seen an evolution in the ability to cause significant outbreaks in a broader range of species, mammals included.
To understand how the bird flu got out of hand, KFF Health News interviewed nearly 70 government officials, farmers and farmworkers, and researchers with expertise in virology, pandemics ...
The Centers for Disease Control and Prevention (CDC) identified the first two A/09(H1N1) swine flu cases in California on April 17, 2009, via the Border Infectious Disease Program, [135] for a San Diego County child, and a naval research facility studying a special diagnostic test, where influenza sample from the child from Imperial County was tested. [136]
The United States experienced the beginnings of a pandemic of a novel strain of the influenza A/H1N1 virus, commonly referred to as "swine flu", in the spring of 2009.The earliest reported cases in the US began appearing in late March 2009 in California, [114] then spreading to infect people in Texas, New York, and other states by mid-April. [115]
According to researchers cited by The New York Times, "based on its genetic structure, the new virus is without question a type of swine influenza, derived originally from a strain that lived in pigs". [4] This origin gave rise to the nomenclature "swine flu", largely used by mass media in the first days of the epidemic.